i am sure this has been debated to death but i need to buy a rifle and i want only one rifle and i want the right one from the start. which is a better killer on targets as big as elk, 50 cal or .54 cal? which can achieve greater speeds and which has greater kenetic impact energy? what i want is a nice curly maple hawken but with modern twist riffling for conical bullets and to top it off i want it to be a flint lock. no modern pellet powder but traditional swiss powder. help me on this please.